HomeDefectsLIN1025-13701
Acknowledged

LIN1025-13701 : Security Advisory - linux - CVE-2026-31563

Created: Apr 27, 2026    Updated: Apr 30, 2026
Found In Version: 10.25.33.2
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:  net: macb: Use dev_consume_skb_any() to free TX SKBs  The napi_consume_skb() function is not intended to be called in an IRQ disabled context. However, after commit 6bc8a5098bf4 ("net: macb: Fix tx_ptr_lock locking"), the freeing of TX SKBs is performed with IRQs disabled. To resolve the following call trace, use dev_consume_skb_any() for freeing TX SKBs:    WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0x174/0x188, CPU#0: ksoftirqd/0/15    Modules linked in:    CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 7.0.0-rc4-next-20260319-yocto-standard-dirty #37 PREEMPT    Hardware name: ZynqMP ZCU102 Rev1.1 (DT)    pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)    pc : __local_bh_enable_ip+0x174/0x188    lr : local_bh_enable+0x24/0x38    sp : ffff800082b3bb10    x29: ffff800082b3bb10 x28: ffff0008031f3c00 x27: 000000000011ede0    x26: ffff000800a7ff00 x25: ffff800083937ce8 x24: 0000000000017a80    x23: ffff000803243a78 x22: 0000000000000040 x21: 0000000000000000    x20: ffff000800394c80 x19: 0000000000000200 x18: 0000000000000001    x17: 0000000000000001 x16: ffff000803240000 x15: 0000000000000000    x14: ffffffffffffffff x13: 0000000000000028 x12: ffff000800395650    x11: ffff8000821d1528 x10: ffff800081c2bc08 x9 : ffff800081c1e258    x8 : 0000000100000301 x7 : ffff8000810426ec x6 : 0000000000000000    x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000    x2 : 0000000000000008 x1 : 0000000000000200 x0 : ffff8000810428dc    Call trace:     __local_bh_enable_ip+0x174/0x188 (P)     local_bh_enable+0x24/0x38     skb_attempt_defer_free+0x190/0x1d8     napi_consume_skb+0x58/0x108     macb_tx_poll+0x1a4/0x558     __napi_poll+0x50/0x198     net_rx_action+0x1f4/0x3d8     handle_softirqs+0x16c/0x560     run_ksoftirqd+0x44/0x80     smpboot_thread_fn+0x1d8/0x338     kthread+0x120/0x150     ret_from_fork+0x10/0x20    irq event stamp: 29751    hardirqs last  enabled at (29750): [<ffff8000813be184>] _raw_spin_unlock_irqrestore+0x44/0x88    hardirqs last disabled at (29751): [<ffff8000813bdf60>] _raw_spin_lock_irqsave+0x38/0x98    softirqs last  enabled at (29150): [<ffff8000800f1aec>] handle_softirqs+0x504/0x560    softirqs last disabled at (29153): [<ffff8000800f2fec>] run_ksoftirqd+0x44/0x80